Re: Brazilian wax !!
It all depends what he's going to do? Applying the carnauba wax to an un prepped car wont really work.
To get the benefit you must do the following, and it does take a long time.
1. Clean the car, obviously.
2. Use a cleansing product, such as HD Cleans to remove grime.
3. Use a clay product to remove imperfections and fill in scratches.
4. Apply the Carnauba wax.
Between cleansing and waxing you cant leave more than 24 hours, ideally it should be immediate, as the wax then bonds to the car paintwork.
5. Gently buff the wax while still wet, then allow it to harden for about 30mins before buffing again.
6. Spray the car with a fine mist of cold water to set the wax, and re-buff.
If you do all this the results are stunning, and the shine will last for a few months, with only light cleaning, but it will take a full day to do a car properly.
So if your £300 valet includes most of this, then thats why its expensive and it is worth while.
I use Zymol Ital wax, Zymol HD Cleans, Zymol Lehm Clay, and Zymol Clay lubricant. The Wax is about £360 a pot and I've had it for 4 years, its done my 3 Ferraris, my Lambo Gallardo and now my Alfa Spider over that time.
On my Gallardo, I did over 22,000 miles and the paintwork was better than the day I collected it when I sold it after 2 years.
Zymol really is brilliant stuff if you do it systematically, but applying the wax onto a car thats simply cleaned has no better effect than using a 'wash & go' product.